Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 72, NWS Green Bay, WI

August 25, 1996Door County, Kewaunee County, Wisconsin

NWS Green Bay, WI issued this severe thunderstorm warning at Aug 25, 1996, 7:16 PM CDT for Door County, Kewaunee County, Wisconsin. It was in force for 59 min. 3 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Aug 25, 1996, 7:16 PM CDT (00:16 UTC)
Expired: Aug 25, 1996, 8:15 PM CDT
In force: 59 min
Issued by: NWS Green Bay, WI
Area: Whole counties

Counties Door County, WI, Kewaunee County, WI

The radar

The Green Bay radar (KGRB), 56 km from the middle of the area, began a volume at 00:18 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where
Aug 25, 7:30 PM CDT	Thunderstorm Wind	Sturgeon Bay, WI
Aug 25, 7:37 PM CDT	Hail 0.75	Luxemburg, WI
Aug 25, 7:45 PM CDT	Thunderstorm Wind	Kewaunee, WI

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 0.3 hours before the alert went out and 56 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 863 J/kg
Mixed-layer CIN: -35 J/kg
Mixed-layer LCL: 1384 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 93 m²/s²
0-3 km storm-relative helicity: 67 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KGRB 260017
SVRGRB
LMZ530-WIC029-061-WIZ511-524-525-260115-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREEN BAY WI
716 PM CDT SUN AUG 25 1996

THE NATIONAL WEATHER SERVICE IN GREEN BAY WI HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 815 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN NORTHEAST WISCONSIN

   ...SOUTHERN DOOR COUNTY
   ...KEWAUNEE COUNTY
 
AT 712 PM GREEN BAY DOPPLER RADAR SHOWED A SEVERE THUNDERSTORM OVER THE
SOUTHERN BAY OF GREEN BAY NEAR STURGEON BAY.

THE STORM WAS MOVING SOUTHEAST AROUND 30 MILES AN HOUR AND WILL REACH
THE ALGOMA AREA BY 730 PM.
 
A SEVERE THUNDERSTORM PRODUCES WINDS IN EXCESS OF 60 MPH...AND
HAIL THAT IS DIME-SIZED OR LARGER.  GO TO A STURDY BUILDING AND
STAY AWAY FROM WINDOWS.

JS/MG

The office that day

Everything else NWS Green Bay, WI issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 25, 7:11 PM CDT	Severe Thunderstorm Warning	GRB	Lincoln	34 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 1996 Every severe thunderstorm warning in 1996

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.